JP4269468B2 - Saddle-type vehicle airbag device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a saddle type vehicle airbag device.
[0002]
[Prior art]
In recent years, in automobiles, airbag devices have been used to alleviate the impact on passengers in the event of a collision and have become widespread. The adoption of airbag devices is also desired in saddle riding type vehicles such as motorcycles. ing.
[0003]
[Problems to be solved by the invention]
By the way, in a straddle-type vehicle including a handle, a head pipe that rotatably supports the handle, and a vehicle body constituent member that includes a frame member that extends from the head pipe to a position below the seat and extends rearward. In particular, it is necessary to inflate the airbag so as to effectively mitigate the impact caused by the movement of the occupant forward, and to arrange the airbag device so that the airbag device is protected from wind and rain and does not impair the appearance.
[0004]
The present invention has been made in view of this point, and an object of the present invention is to provide a straddle-type vehicle airbag device that can effectively reduce an impact and can improve appearance.
[0005]
[Means for Solving the Problems]
In order to solve the above problems and achieve the object, the present invention is configured as follows.
[0006]
The invention according to claim 1 is a vehicle body constituting member including a handle, a head pipe that rotatably supports the handle, and a frame member that extends from the head pipe to a position below the seat and then extends rearward. In a straddle-type vehicle in which a space is formed between the vehicle body component and the seat,
An airbag device is attached to the vehicle body component so as to inflate the airbag in the space,
A straddle-type vehicle air bag apparatus, characterized in that a shield supported by a support member constituted by a frame on the front side of the head pipe is provided on the front side of the head pipe . ].
[0007]
According to the first aspect of the present invention, the airbag can be inflated in the space between the vehicle body structural member and the seat, so that the impact caused by the forward movement of the occupant can be effectively mitigated. The appearance can be improved by attaching the bag device and covering the airbag device. In addition, a shield supported by a support member is provided on the front side of the head pipe. When an impact caused by the movement of an occupant forward is applied to the airbag, the shield is supported by the support member, and the impact is received by the airbag. Can be effectively relieved and the abdomen, chest, etc. can be efficiently protected.
[0008]
The invention according to claim 2 is characterized in that “the vehicle body constituting member is formed in a dogleg shape with a central portion protruding forward in a side view of the vehicle, and an airbag device is attached to the protruding portion. The airbag apparatus for straddle-type vehicles according to claim 1 . ].
[0009]
According to the second aspect of the present invention, not only can the airbag device be placed using the dead space, but the front of the occupant is opened by placing the airbag device in a recessed position. It becomes easy to expand to.
[0010]
According to a third aspect of the present invention, “the inflator means that operates in response to the detected impact and deploys the airbag is arranged offset to the side of the vehicle body with respect to the vehicle body center. Or the saddle type vehicle airbag device according to claim 2. ].
[0011]
According to the third aspect of the present invention, the inflator means for deploying the airbag can be efficiently arranged avoiding the frame member and the head pipe.
[0012]
According to a fourth aspect of the present invention, the saddle riding according to any one of the first to third aspects, wherein the airbag is inflatable to a position above the handle supported by the head pipe. Type vehicle airbag device. ].
[0013]
According to the fourth aspect of the present invention, since the airbag is inflated to a position above the handle supported by the head pipe, the impact of the occupant's body moving forward and upward can be effectively reduced. Because the entire airbag can be protected with the airbag, the cost is low.
[0014]
According to a fifth aspect of the present invention, any one of the first to fourth aspects, wherein the frame member is provided with a control unit that operates the airbag and a detection unit that detects an impact applied to the vehicle. The straddle-type vehicle air bag device according to claim 1. ].
[0015]
According to the fifth aspect of the present invention, since the frame member is provided with the control unit for operating the airbag and the detection means for detecting the impact applied to the vehicle, it is in the vicinity of the center of gravity of the vehicle body and can detect the impact with high accuracy. In addition, it can be arranged in the vicinity of the airbag device, so that the cord arrangement can be simplified and protected from wind and rain.
[0016]
According to a sixth aspect of the present invention, “a control unit that operates the airbag and a detection unit that detects an impact applied to the vehicle are integrally configured. The straddle-type vehicle air bag device according to claim 1. ].
[0017]
According to the sixth aspect of the present invention, since the control unit and the detection means are integrally configured, the manufacturing process can be simplified and the cost can be reduced, and the impact can be applied with high accuracy without being constantly exposed to vibration. It can be detected.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of a saddle type vehicle airbag device according to the present invention will be described with reference to the drawings. However, the present invention is not limited to the embodiments.
[0019]
1 is a side view of a scooter type vehicle equipped with a saddle type vehicle airbag device, FIG. 2 is a plan view of a scooter type vehicle equipped with a saddle type vehicle airbag device, and FIG. 3 shows an arrangement portion of inflator means. FIG. 4 is a cross-sectional view showing a portion where the inflator means is disposed, FIG. 5 is a perspective view of the transparent shield, FIG. 6 is a side view of the scooter type vehicle with the airbag deployed, and FIG. 7 is the airbag deployed. FIG. 8 is a side view of the scooter type vehicle showing the damper structure with the reinforcing member, and FIG. 9 is a plan view of the scooter type vehicle showing the damper structure with the reinforcing member.
[0020]
A scooter type vehicle is shown as a saddle type vehicle of this embodiment, and a vehicle body 1 of this scooter type vehicle has a handle 2, a head pipe 3 that rotatably supports the handle 2, and a lower portion of the head pipe 3. A pair of left and right lower main frames 5 extending from the top of the head pipe 3 to the lower side of the seat 4, a pair of left and right upper main frames 6 extending from the upper part of the head pipe 3 to the lower side of the seat 4, and the lower main frame 5 and the upper A vehicle body constituting member including a frame member such as a rear frame 7 connected to the main frame 6 and extending rearward of the seat 4 is provided. A connection frame 8 is connected between the lower main frame 5 and the upper main frame 6 and is reinforced by the connection frame 8.
[0021]
A front fork 9 is rotatably supported on the head pipe 3, a front wheel 10 is supported at the lower part of the front fork 9, and a handle 2 extending left and right is provided at the upper part, and is steered by the handle 2.
[0022]
A unit swing engine 11 is supported on the lower main frame 5, the upper main frame 6 and the rear frame 7, and a rear wheel 12 is supported on the unit swing engine 11. The seat 4 is supported by a bracket 13 provided on the upper main frame 6, a bracket 14 provided on the rear frame 7, and a seat rail 15.
[0023]
The vehicle body constituting member of the saddle riding type vehicle is covered with a front cowl 20 and a rear cowl 21, and the rear cowl 21 covers the lower periphery of the seat 4 and extends to the front of the seat 4, and between the front cowl 20 and the seat 4. Is provided with a step portion 22 so that an occupant 23 seated on the seat 4 puts his or her foot on the step portion 22 to drive.
[0024]
A front cowl 20 is supported on the front side of the head pipe 3 via a support member 31. The support member 31 includes a pair of left and right front support frames 31a supported by a support bracket 30 fixed to the front side of the head pipe 3, a pair of left and right rear support frames 31b supported by the lower main frame 5, and the pair of left and right A front connection frame 31c connected to the front support frame 31a extending in the vehicle body width direction, a pair of left and right rear connection frames 31d connecting the front connection frame 31c and the rear support frame 31b, and the pair of left and right rear connection frames It comprises a pair of left and right support frames 31e that connect and support the upper part of 31d and both sides of the front connection frame 31c.
[0025]
Further, the upper main frame 6 is provided with a reinforcing member 40 that extends to the front side toward the front cowl 20. As shown in FIGS. 1 and 5, the front cowl 20 is provided with a transparent shield 200 having mesh wires.
[0026]
As shown in FIGS. 8 and 9, the frame member including the head pipe 3 that rotatably supports the rear end portion 40 b of the reinforcing member 40 having the front end portion 40 a extending in the vehicle body width direction as shown in FIGS. 8 and 9. The front end portion 40a is disposed in front of the axle center O1 of the front wheel 10 in the front-rear direction, and the distance L1 between the vehicle body gravity center O2 and the front end portion 40a in the vertical direction is the distance between the vehicle body gravity center O2 and the axle center O1. L2 is approximately equal to L2, whereby the reinforcing member 40 becomes a damper, and the occurrence of pitching of the vehicle body can be reduced.
[0027]
Further, the rear end portion 40b of the reinforcing member 40 having the front end portion 40a extending in the vehicle body width direction is fixed to the frame member including the head pipe 3 that rotatably supports the handle 2, and the front end portion 40a is fixed in the front-rear direction. Is disposed in front of the axle center O1 of the front wheel 10 and in the vertical direction in the vicinity of the combined center of gravity O4 of the vehicle body center of gravity O2 and the occupant center of gravity O3, whereby the reinforcing member 40 becomes a damper, and the pitching of the vehicle body Generation can be mitigated.
[0028]
Further, the reinforcing member 40 is constituted by the front end member 400 extending in the vehicle body width direction and the left and right members 401 extending rearward from both left and right end portions thereof, and the intermediate portion 401c is formed from the widths of the front end portion 401a and the rear end portion 401b of the left and right members 401. And the electrical component 402 is accommodated between the intermediate portions 401c, and the outer side of the reinforcing member 40 is covered with the front cowl 20, which is a resin cover member, and the dead space is effectively utilized. It is possible to firmly support the electrical equipment that is a working device.
[0029]
Further, the reinforcing member 40 is supported by the frame member that is deformed when an impact is applied between the front wheel 10 and the frame member that extends from the head pipe 2 to the lower side of the seat 4 and extends rearward. 40 becomes a damper, and the occurrence of pitching of the vehicle body can be reduced.
[0030]
In this scooter type vehicle, an airbag device 50 is disposed, and when the vehicle body 1 collides with an obstacle with a predetermined impact force, the airbag 51 is inflated in front of the occupant 23 and deployed. .
[0031]
In this embodiment, the airbag device 50 is attached to the vehicle body constituent member so that the airbag 51 is inflated in the space 52 between the vehicle body constituent member and the seat 4. That is, the vehicle body component is formed by the head pipe 3 and the upper main frame 6 in the shape of a dog so that the central portion protrudes forward in a side view of the vehicle, and the airbag device 50 is attached to the protruding portion.
[0032]
Thus, since the airbag 51 is inflated in the space 52 between the vehicle body constituting member and the seat 4, the transparent shield 200 supported by the support member 31 when an impact is applied to the airbag 51 due to the forward movement of the occupant 23. The impact can be effectively reduced by the airbag 51, and the abdomen, chest, etc. can be efficiently protected. In addition, the airbag device 50 is attached to the vehicle body constituting member, and the airbag device 50 has a cover 54 that covers the airbag 51, so that the appearance can be improved.
[0033]
Further, not only can the airbag device 50 be arranged using the dead space, but the airbag 51 can be easily deployed in the space 52 because the front of the occupant 23 is opened by arranging the airbag device 50 in a recessed position.
[0034]
As shown in FIG. 6, the airbag 51 can be inflated to above the handle 2 supported by the head pipe 3, and can effectively reduce the impact caused by the body of the occupant 23 moving forward and upward. Moreover, since the entire surface of the occupant 23 can be protected by one airbag 51, the cost is low.
[0035]
Further, the airbag device 50 may be disposed in front of the head pipe 3, and in this case, the airbag device 50 can be reliably deployed in the vicinity of the head to effectively reduce the impact. Further, the airbag device 50 may be disposed in front of the knee of the occupant 23. In this case, the airbag device 50 can be reliably deployed near the knee, and the impact can be effectively reduced. Furthermore, the airbag device 50 may be arranged at the center of the handle 2, and in this case, the hindrance to deployment due to the position of the handle 2 can be prevented.
[0036]
The airbag device 50 includes a detection unit 55 that detects an impact applied to the vehicle body, and a control unit 57 that operates the inflator unit 56 in response to the detected impact to deploy the airbag 51.
[0037]
As shown in FIGS. 3 and 4, the inflator means 56 is disposed offset to the side of the vehicle body with respect to the vehicle body center O <b> 2 and operates according to the impact detected by the inflator means 56 to deploy the airbag 51. Let The inflator means 56 is located in the vicinity of the head pipe 2 and can be efficiently disposed avoiding the frame member and the head pipe, and is disposed at a position where it does not collide with an obstacle such as a stone during traveling. .
[0038]
The detection means 55 and the control unit 57 are attached to a box 70 fixed to the front side position of the seat 4 of the upper main frame 6. Since the control unit 57 for operating the airbag 51 and the detection means 55 for detecting the impact applied to the vehicle are provided on the frame member, the impact is detected not only in the vicinity of the center of gravity of the vehicle body but also accurately. Arrangement in the vicinity simplifies cord routing and protects against wind and rain.
[0039]
Further, by integrally configuring the control unit 57 for operating the airbag 51 and the detection means 56 for detecting the impact applied to the vehicle, the manufacturing process can be simplified and the cost can be reduced, and it is always exposed to vibration. The impact can be detected with high accuracy without being broken.
[0040]
【The invention's effect】
As described above, according to the first aspect of the present invention, the airbag is inflated in the space between the vehicle body constituent member and the seat, and the impact caused by the movement of the occupant forward can be effectively mitigated. The air bag device can be attached to the air bag device, and the appearance can be improved by covering the air bag device. In addition, a shield supported by a support member is provided on the front side of the head pipe. When an impact caused by the movement of an occupant on the front is applied to the airbag, the shield is supported by the support member, and the impact is received by the airbag. Can be effectively relieved and the abdomen, chest, etc. can be efficiently protected.
[0041]
In the invention according to claim 2, since the airbag device can be arranged using the dead space, and the front of the occupant is opened by arranging the airbag device in the recessed position, the airbag is deployed in the space. It becomes easy.
[0042]
In the invention described in claim 3, the inflator means for deploying the airbag can be efficiently arranged avoiding the frame member and the head pipe.
[0043]
In the invention according to the fourth aspect, the airbag is inflated to a position above the handle supported by the head pipe, so that the impact of the occupant's body moving forward and upward can be effectively mitigated. Because it can protect the entire occupant, the cost is low.
[0044]
In the invention according to claim 5, since the frame member is provided with the control unit for operating the airbag and the detection means for detecting the impact applied to the vehicle, it is not only near the center of gravity of the vehicle body but also capable of accurately detecting the impact. By arranging it in the vicinity of the airbag device, the cord arrangement can be simplified and it can be protected from wind and rain.
[0045]
According to the sixth aspect of the present invention, since the control unit and the detection means are integrally formed, the manufacturing process can be simplified and the cost can be reduced, and the impact can be detected with high accuracy without being constantly exposed to vibration.
[Brief description of the drawings]
FIG. 1 is a side view of a scooter type vehicle including a saddle type vehicle airbag device.
FIG. 2 is a plan view of a scooter type vehicle including a saddle type vehicle airbag device.
FIG. 3 is a plan view showing an arrangement portion of inflator means.
FIG. 4 is a cross-sectional view showing an arrangement portion of inflator means.
FIG. 5 is a perspective view of a transparent shield.
FIG. 6 is a side view of the scooter type vehicle in a state where the airbag is deployed.
FIG. 7 is a plan view of the scooter type vehicle in a state where the airbag is deployed.
FIG. 8 is a side view of a scooter type vehicle showing a damper structure with a reinforcing member.
FIG. 9 is a plan view of a scooter type vehicle showing a damper structure with a reinforcing member.
[Explanation of symbols]
1 Car body 2 Handle 3 Head pipe 4 Seat 50 Air bag device 51 Air bag 52 Space

Claims (6)

A vehicle body component member including a handle, a head pipe that rotatably supports the handle, and a frame member that extends from the head pipe to a position below the seat and then extends rearward, the vehicle body component member and the seat In a saddle-ride type vehicle in which a space is formed between
An airbag device is attached to the vehicle body component so as to inflate the airbag in the space,
A straddle-type vehicle air bag apparatus, characterized in that a shield supported by a support member constituted by a frame on the front side of the head pipe is provided on the front side of the head pipe . The saddle riding according to claim 1 , wherein the vehicle body constituting member is formed in a dogleg shape with a central portion protruding forward in a side view of the vehicle, and an airbag device is attached to the protruding portion. Type vehicle airbag device.   3. The saddle riding type according to claim 1, wherein the inflator means that operates in response to the detected impact and deploys the airbag is arranged offset to the side of the vehicle body with respect to the vehicle body center. Vehicle airbag device.   4. The straddle-type vehicle airbag device according to claim 1, wherein the airbag is inflatable to a position above a handle supported by the head pipe. 5.   The straddle-type vehicle according to any one of claims 1 to 4, wherein a detection unit that detects a control unit that operates the airbag and an impact applied to the vehicle is provided in the frame member. Air bag device.   The straddle-type vehicle according to any one of claims 1 to 5, wherein a control unit that operates the airbag and a detection unit that detects an impact applied to the vehicle are integrally configured. Air bag device.

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